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Earth, Planets and Space
Fig. 1 | Earth, Planets and Space

Fig. 1

From: Large intraslab earthquake (2011 April 7, M 7.1) after the 2011 off the Pacific coast of Tohoku Earthquake (M 9.0): Coseismic fault model based on the dense GPS network data

Fig. 1

Map showing GPS sites and the 2011, M 7.1, earthquake. The black rectangle and the red star in the inset map represent locations of the study area and the epicenter of the 2011, M 9, event determined by JMA, respectively. Small gray circles show the aftershocks determined by the JMA during the period from 11 March to 10 April, 2011. Small blue circles show the aftershocks of the M 7.1 event during the period from the 7 April earthquake to 10 April, 2011. The sizes of the circles are proportional to the magnitude of the earthquakes. The black solid circles denote the GEONET sites used in this study. The red, green, and blue solid circles denote the TU, JNES and NAO sites, respectively. The gray solid circles denote the GPS sites for a collaborative research between TU and GSI. The earthquake mechanism is estimated by NIED. The thin dashed line shows the subducting Pacific plate interface isodepth contours compiled by Kita et al. (2010). Each dashed line represents 10-km intervals. Thin black contours denote the slip distribution of past earthquakes (a) 1978 Miyagi-Oki, (b) 1936 Miyagi-Oki estimated by Yamanaka and Kikuchi (2004).

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